Structural features such as faults, veins, folds etc. can be observed in a granitic rock. How do these affect the mineralization of ion adsorption clay type of REEs? Could more fractures indicate enrichment of the elements or vice versa?
Structural geology is a form and cannot influence anything. The formation of rare earth and other (various mineral formations) can be influenced by processes that occur in geodynamic zones (elements of structural geology) through the migration of highly mineralized solutions under high temperatures (catalyst of geochemical processes), geodynamic vibrations (play the role of a separator of various substances by density ) and electric currents generated by piezoelectric effects (perform the work of electrolysis, electrodiffusion, transport agent, etc.)
All types of REE deposits are contolled by geodynamic processes such as rifting and deep-seated lineamentray fault zones this is true for carbonatites, alkaline magmatic rocks and ensimatic pegmatites
1)REE-P-Nb-Ta-Y-F-(Be-Zr-Th) deposits related to carbonatites
2)REE-P-Ti deposits related to alkaline igneous complexes (
3)REE-U-Nb-bearing pegmatites (in places, transitional into intragranitic deposits with Mo-W-U-Be)
4)REE-Nb-P-F- bearinghydrothermal iron deposits
5)Be- and Y-bearing alkaline intrusive rocks (nepheline syenite)
6)REE-F-Ba-Th- bearing vein-type deposits
6) is a faultbound type in the strict sense
For further reading see (all are open access/ see Researchgate)
DILL, H.G., BUZATU, A., BALABAN, S.-I. and RÜSENBERG, K. A. (2023) A mineralogical-geomorphological terrain analysis of hotspot volcanic islands -The missing link between carbonatite- and pegmatite Nb-F-Zr-Li-Be-bearing REE deposits and new tools for their exploration (Canary Islands Archipelago, Spain).- Ore GeologyReviews: (in print)
DILL, H.G and RÜSENBERG, K. A. (2023) Marker minerals in volcanics and xenoliths—An approach to categorize the inferred magmatic rocks underneath the present-day volcanic landscape of Tenerife, Spain (NW African Rare Mineral Province).- Minerals: 2023, 13, 1410. 1-56, https://doi.org/10.3390/min13111410